Simple CRM/Project Management

We are looking for a simple CRM/Project Management solution for our business.? Application could be web-based or software based.? Could be written in Access, MySQL, etc or free standing.? In any case, must be accessible by mulitiple users at the same time.? This could be something that has already been written modified for our use or something new.? The function is all we care about, how we do it is not important. The application would be in 2 parts, the first part a very simple CRM as shown in the enclosed excel spreadsheet.? The 2nd part would accepted quotes to the job management phase which would mimic a standard project management program.? It is important that we could attach files to each part. Please explain to us how you would accomplish what we are looking for, the time frame and, if possible, show us examples of similiar work you have done. Thanks,